Federal employees on disability receive a pension calculated from their salary and years of service, not from Social Security

If you work for the federal government and become unable to work, you do not file for SSDI. Instead, you receive a Civil Service Retirement System (CSRS) or Federal Employees Retirement System (FERS) disability annuity, depending on which retirement plan covers you. The amount you receive is based on your high-3 average salary—the highest three consecutive years of your earnings—and your years of creditable service, not on your medical condition alone.

The Office of Personnel Management (OPM) administers these benefits. Your agency's human resources office handles the initial paperwork, but OPM makes the final decision on whether you meet the disability standard and calculates your monthly payment. This is a separate system from SSDI, though you may eventually transition to Social Security at full retirement age.

The payment method differs too: your agency pays you directly from its budget or from the Civil Service Retirement and Disability Fund, not from the Social Security trust fund. This means the rules, the amount, and the timeline all work differently than SSDI.

Key Takeaways

  • Federal employee disability pay is calculated as a percentage of your high-3 average salary times your years of service, not as a fixed amount based on your work history like SSDI.
  • CSRS employees typically receive 40% of high-3 for disability with less than 20 years of service; FERS employees receive 60% of high-3 regardless of years of service.
  • You must file through your agency's human resources office, not through Social Security, and OPM will order a medical examination to assess your ability to work.
  • Your agency continues to pay your health insurance premiums while you are on disability annuity, which is a major difference from SSDI.
  • At your full retirement age, your disability annuity converts automatically to a regular retirement annuity at the same payment amount.

How CSRS Disability Annuity Calculates Your Payment

If you are covered by the Civil Service Retirement System, your disability annuity is calculated as a percentage of your high-3 average salary multiplied by your years of creditable service. The percentage depends on how long you have worked for the federal government.

With fewer than 20 years of service, you receive 40% of your high-3 average salary. With 20 or more years of service, you receive the higher of two amounts: either 40% of high-3, or your accrued annuity (the amount you would have received at normal retirement age). In most cases with 20+ years, the accrued annuity is larger, so that is what you receive. For example, if your high-3 is $60,000 and you have 22 years of service, your accrued annuity might be $33,000 per year (55% of high-3), which is more than the 40% floor of $24,000.

CSRS is the older system and covers federal employees hired before 1984. If you are unsure which system covers you, your HR office can confirm this in minutes.

How FERS Disability Annuity Calculates Your Payment

If you are covered by the Federal Employees Retirement System, your disability annuity is simpler: you receive 60% of your high-3 average salary, regardless of how many years you have worked. This is a flat rate, not a percentage of years of service.

FERS also includes a Social Security component. When you turn 62, you become may have access to to Social Security retirement benefits based on your federal service and any other covered work. OPM coordinates with Social Security so that your total income from both sources does not exceed what you would have received if you had worked until full retirement age. This coordination is called the Government Pension Offset in some contexts, though the exact mechanics vary.

FERS is the current system for federal employees hired after 1983. Most federal workers today are under FERS.

What "High-3 Average Salary" Means and How It Affects Your Payment

Your high-3 average salary is the average of your basic pay (not bonuses, overtime, or locality pay in most cases) for the three consecutive years in which you earned the most. If you worked for the federal government for 25 years and your last three years of salary were $70,000, $72,000, and $75,000, your high-3 is ($70,000 + $72,000 + $75,000) ÷ 3 = $72,333.

OPM uses this figure, not your current salary, because it prevents employees from inflating their final year's pay to boost their disability annuity. The high-3 is locked in when your disability annuity begins, and it does not change if you later return to work or if your agency gives raises to active employees.

Your high-3 is the single largest factor in your monthly payment. A higher high-3 means a higher annuity. If you are approaching disability and your salary has been rising, the timing of when you file can matter: if you expect a significant raise in the next year or two, waiting might increase your high-3 and your annuity. However, you cannot file retroactively, so delaying also delays when payments begin.

How Years of Service Affect Your CSRS Payment (But Not FERS)

Under CSRS, years of creditable service directly affect your payment amount. Creditable service includes time you actually worked for the federal government, plus certain periods that count toward your pension even if you were not paid (such as military service or time on approved leave).

The formula is: high-3 × (1.5% × years of service) for regular retirement. For disability with fewer than 20 years, you receive 40% of high-3 instead, which is often less generous. With 20 or more years, you receive the higher of 40% or your accrued annuity, which rewards longer service.

Under FERS, years of service do not change your disability payment—you receive 60% of high-3 no matter whether you have 5 years or 25 years of service. This is a major difference from CSRS and is one reason FERS is considered more generous for disability.

Health Insurance and Other Benefits While on Disability Annuity

One of the largest financial advantages of federal employee disability is that your agency continues to pay its share of your health insurance premiums while you receive disability annuity. If you were paying $200 per month for your share of a health plan and your agency was paying $600, the agency continues to pay $600 even after you go on disability. You continue to pay your $200 share.

This is very different from SSDI, where you must pay the full premium for Medicare Part B and Part D once you are may be able to access, and you lose employer health coverage. For a federal employee on disability, keeping the agency's health insurance subsidy can be worth $5,000 to $10,000 per year or more, depending on your plan and family coverage.

You also retain may be able to access for life insurance under the Federal Employees Group Life Insurance (FEGLI) program, though the amount may be reduced depending on your plan type. Dental and vision coverage, if you had them, continue as well.

What Happens to Your Disability Annuity at Retirement Age

Your disability annuity does not end at age 62 or 65. Instead, it converts automatically to a regular retirement annuity at your full retirement age (which varies by birth year, similar to Social Security). The payment amount stays the same—you do not receive a lower amount after conversion.

At that point, you become may have access to to Social Security retirement benefits as well, based on your federal service and any other covered work. OPM will coordinate your federal annuity and Social Security so you understand your total income. You do not need to file separately for Social Security; OPM handles the coordination.

If you return to work before your full retirement age, your disability annuity may be suspended or reduced depending on your earnings. The rules are complex and depend on whether you return to federal service or take a private-sector job. Your HR office or OPM can explain the specific rules for your situation.

How to File for Federal Employee Disability

You do not file through Social Security. Instead, you contact your agency's human resources or employee services office and request a disability retirement process. Your agency will give you the forms and explain the process specific to your workplace.

You will need to provide medical evidence of your condition and your inability to perform your job duties. OPM will order an independent medical examination, which the government pays for. The examination is not a one-time visit; OPM may request additional records or a second opinion.

The process typically takes three to six months from process to decision. During this time, you should continue to work if you are able, because your annuity does not begin until OPM approves your claim. If you stop working before approval, you may not receive back pay.

Frequently Asked Questions

Can I receive both federal employee disability and SSDI at the same time?

Yes, but Social Security will reduce your SSDI payment by a portion of your federal annuity under the Government Pension Offset. The reduction is typically 2/3 of your federal annuity. If your federal annuity is $1,500 per month, Social Security may reduce your SSDI by $1,000, leaving you $500 in SSDI. You should file for both and let both agencies coordinate the payments.

What if I disagree with OPM's decision that I am not disabled?

You have the right to appeal to the Merit Systems Protection Board (MSPB) within 30 days of OPM's decision. You can represent yourself or hire an attorney. The MSPB will review OPM's medical evidence and your own medical records. If the MSPB agrees with you, OPM must recalculate your annuity retroactively to the date you originally filed.

Does my federal disability annuity count as income for Medicaid or other means-tested programs?

Yes, your federal annuity is counted as income for Medicaid, Supplemental Security Income (SSI), and other need-based programs. The amount that counts is your gross annuity before taxes. Some states have higher income limits than others, so contact your state Medicaid office to learn whether you remain may be able to access.

What if I was a federal employee for only a few years before becoming disabled?

You must have at least one year of creditable service to be considered for disability annuity under CSRS or FERS. With only a few years of service, your high-3 will be lower and your payment will be smaller, but you are still may be able to access. OPM will calculate your annuity based on the service you do have.

Can I work part-time or do freelance work while receiving disability annuity?

Yes, but your earnings may affect your annuity depending on your age and the type of work. If you are under full retirement age and return to federal service, your annuity may be suspended. If you work in the private sector, the rules are less restrictive. Ask your HR office or OPM about the specific earnings limits that explore to you before you take on outside work.